Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California
Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 3:28:43 PM (PDT) on Monday, October 20, 2025.
The magnitude 1.0 event occurred 4 km (3 miles) ESE of Palomar Observatory, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 3:28:43 PM (PDT) Monday, October 20, 2025 at 22:28:43 (UTC) |
| Distance from |
Palomar Observatory, CA - 4 km (3 miles) ESE (108 degrees) Aguanga, CA - 12 km (7 miles) SSE (159 degrees) Lake Henshaw, CA - 13 km (8 miles) NNW (335 degrees) Warner Springs, CA - 19 km (12 miles) WNW (292 degrees) Pala, CA - 24 km (15 miles) E (96 degrees) |
| Coordinates | 33 deg. 20.7 min. N (33.344N), 116 deg. 49.2 min. W (116.821W) |
| Depth | 4.53 km (2.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=54, Nph=89, Dmin=4.0 km, Rmss=0.21 sec, Erho=0.16 km, Erzz=0.41 km, Gp=25 degrees |
| Event ID# | ci41111927 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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